package com.example.newproject_overseas.components


import android.util.Log
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.items
import androidx.compose.material.Divider
import androidx.compose.material.ExperimentalMaterialApi
import androidx.compose.material.Icon
import androidx.compose.material.ModalBottomSheetLayout
import androidx.compose.material.ModalBottomSheetState
import androidx.compose.material.ModalBottomSheetValue
import androidx.compose.material.Text
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.ArrowBack
import androidx.compose.material.rememberModalBottomSheetState
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.rememberCoroutineScope
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.example.newproject_overseas.model.entity.ModelItem
import com.example.newproject_overseas.model.entity.Province
import kotlinx.coroutines.launch

data class SelectedObject(
    val id1: String,
    val name1: String,
    val id2: String,
    val name2: String,
    val name: String
)

//获取工作岗位信息
@OptIn(ExperimentalMaterialApi::class)
@Composable
fun TwoLevelDropdown(
    state: ModalBottomSheetState,
    provinces: List<Province>,
    onItemSelected: (SelectedObject) -> Unit,
) {

    // Define your state variables here
    val scope = rememberCoroutineScope()
    var occ1Name by remember { mutableStateOf("") }
    var occ2Name by remember { mutableStateOf("") }
    var occ1Id by remember { mutableStateOf("") }
    var occ2Id by remember { mutableStateOf("") }
    var occVal by remember { mutableStateOf("") }
    var occBool by remember { mutableStateOf(false) }
    var selectedProvinceIndex by remember { mutableStateOf(-1) }





    //2级联动
    ModalBottomSheetLayout(
        sheetState = state,
        sheetContent = {

            Column(modifier = Modifier
                .height(250.dp),
                verticalArrangement = Arrangement.Center,
                horizontalAlignment = Alignment.CenterHorizontally) {
                //标题
                Row(modifier = Modifier
                    .fillMaxWidth(),
                    verticalAlignment = Alignment.CenterVertically,
                    horizontalArrangement = Arrangement.Center) {
                    Icon(
                        imageVector = Icons.Default.ArrowBack,
                        contentDescription = "Back",
                        tint = Color.Gray, // Icon color
                        modifier = Modifier
                            .clickable {
                                Log.e("图标", "Text: ", )
                                occBool = false; //关闭2级页
                            }
                            .padding(start = 16.dp)
                    )
                    Spacer(modifier = Modifier.weight(1f))
                    Text(
                        modifier = Modifier
                            .padding(top = 10.dp, bottom = 10.dp),
                        text = "Please choose",
                        fontSize = 20.sp,
                        color = Color(0xFFFFCC00)
                    )
                    Spacer(modifier = Modifier.weight(1.5f))
                }



                LazyColumn(modifier = Modifier
                    .height(250.dp)){
                    items(provinces) { data ->

                        //1级
                        if(occBool == false){
                            Divider()
                            Row(modifier = Modifier
                                .clickable {
                                    Log.i(data.toString(), "Text: ")
                                    occ1Name  = data.name;
                                    occ1Id    = data.id;
                                    occBool   = true;
                                    selectedProvinceIndex = provinces.indexOf(data)
                                }
                                .padding(top = 10.dp, bottom = 10.dp)
                                .fillMaxWidth(),
                                verticalAlignment = Alignment.CenterVertically,
                                horizontalArrangement = Arrangement.Center
                            ) {
                                Text(text = data.name)
                            }

                        }else if(selectedProvinceIndex == provinces.indexOf(data) && occBool == true){
                            //2级
                            data.children.forEach { city ->
                                Divider()
                                Row(modifier = Modifier
                                    .clickable {
                                        occ2Id   = city.id
                                        occ2Name = city.name;
                                        occVal   = occ1Name + occ2Name //最终结果
                                        occBool  = false;
                                        scope.launch { state.hide() }

                                        val selectedObject = SelectedObject(
                                            id1 = occ1Id,
                                            name1 = occ1Name,
                                            id2 = occ2Id,
                                            name2 = occ2Name,
                                            name = "$occ1Name$occ2Name"
                                        )


                                        onItemSelected(selectedObject)
                                    }
                                    .padding(top = 10.dp, bottom = 10.dp)
                                    .fillMaxWidth(),
                                    verticalAlignment = Alignment.CenterVertically,
                                    horizontalArrangement = Arrangement.Center
                                ) {
                                    Text(text = city.name)
                                }
                            }

                        }






                    }




                }

            }

        }
    ){}



}

